CVE-2015-7550

kernel: User triggerable crash from race between key read and rey revoke

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Severity

Moderate

Red Hat Product Security

4.6

CVSS 2.0

Review impact separately from score.

Published · December 10, 2015

Updated · November 21, 2025

Description

A NULL-pointer dereference flaw was found in the kernel, which is caused by a race between revoking a user-type key and reading from it. The issue could be triggered by an unprivileged user with a local account, causing the kernel to crash (denial of service).

Statement

This issue affects the Linux kernels as shipped with Red Hat Enterprise Linux 5,6 and 7 and may be addressed in a future update.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 2.0 · 4.6
AV:L/AC:L/Au:S/C:N/I:N/A:C

CWE-476 · NULL Pointer Dereference